#434

backend/app/controllers/counts_exports_controller.rb

@@ -9,6 +9,14 @@ class CountsExportsController < ApplicationController
     token = CountsExportDownload.prepare(exporter, session[:counts_export_owner])
     response.headers['Cache-Control'] = 'private, no-store'
     render json: { token: }
+  rescue CountsExportDownload::Busy
+    head :too_many_requests
+  rescue CountsExportDownload::TooLarge
+    head 413
+  rescue CountsExportDownload::TimedOut
+    head :gateway_timeout
+  rescue CountsExportDownload::StorageFull, Errno::ENOSPC
+    head :insufficient_storage
   rescue ArgumentError, TypeError, KeyError, JSON::ParserError
     head :bad_request
   end